My OS is XP and have Kingston 512k sdram pc133. I also have a gforce 420 agp video card. I purchased a stick of 512k generic pc133 sdram put it in my computer and now my computer locks up. Why? Does the ram have to be the same brand?

I purchased a stick of 512k generic pc133 sdram put it in my computer and now my computer locks up. Why? Does the ram have to be the same brand?

Not usually. Does it lock up right away, or after a period of time?

Make sure the RAM is properly seated (even I get stung by this sometimes). Try running just the new DIMM by itself. Check the BIOS to ensure that the RAM timings have not been tweaked. Try putting the generic stick in the first slot, since the chipset gets its timings from the first DIMM it finds.

That's all I can think of for now...

ditto >.< however if your still using pc133 its time to upgrade your box

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